[DeanLag]

Aiight, I just tested and
Find
<td class="thead">$vbphrase[threads]</td>
Replace with
<td class="thead" width="XX%">$vbphrase[threads]</td>

Find
<td class="thead">$vbphrase[posts]</td>

Replace with
<td class="thead" width="XX%">$vbphrase[posts]</td>

Should work now. You also have to change the ones above those such as $vbphrase[forum] and $vbphrase[last_post].
If you put 1%, the column will shrink until theres no space between the word and the borders.

So nope, you can't shrink the columns anymore according to the picture, but can increase the width.